From 37b82b260b22a2484b37aef3a98e9aecb4e073c9 Mon Sep 17 00:00:00 2001
From: Tom <thomas.hodson@ecmwf.int>
Date: Fri, 30 May 2025 10:33:06 +0200
Subject: [PATCH] Add atom feed

---
 README.md                        |  3 +--
 _includes/default_head_tags.html |  4 ++-
 atom.xml                         | 42 ++++++++++++++++++++++++++++++++
 3 files changed, 46 insertions(+), 3 deletions(-)
 create mode 100644 atom.xml

diff --git a/README.md b/README.md
index 605968e..552ed91 100644
--- a/README.md
+++ b/README.md
@@ -18,8 +18,7 @@ A list of things to check once in a while to make sure I haven't broken them ina
   - add humans.txt https://humanstxt.org/
   - fix the OG tags so that https://cards-dev.twitter.com/validator works
   - consider switching to using pandoc as a markdown renderer
-  - setup webmentions https://aarongustafson.github.io/jekyll-webmention_io/
-  - add a theme toggle button: https://whitep4nth3r.com/blog/best-light-dark-mode-theme-toggle-javascript/
+  - make the light dark mode toggle work without js
   - make sure the above works with the thesis section, will probably require stripping the html tag.
   - add json-ld metadata https://csvbase.com/blog/13
 
diff --git a/_includes/default_head_tags.html b/_includes/default_head_tags.html
index 0cc0093..d5d87db 100644
--- a/_includes/default_head_tags.html
+++ b/_includes/default_head_tags.html
@@ -130,7 +130,9 @@ Stay a while, poke around, there might be some easter eggs to be found.`,
 </script>
 
 <!-- RSS feed -->
-{% feed_meta %}
+<link rel="alternate" type="application/rss+xml" href="/feed.xml" title="Tom Hodson's RSS Feed" />
+<link rel="alternate" type="application/feed+json" href="/feed.json" title="Tom Hodson's JSON Feed" />
+<link rel="alternate" type="application/atom+xml" href="/atom.xml" title="Tom Hodson's ATOM Feed" />
 
 {% if layout.head %}
 {{ layout.head }}
diff --git a/atom.xml b/atom.xml
new file mode 100644
index 0000000..918f85c
--- /dev/null
+++ b/atom.xml
@@ -0,0 +1,42 @@
+---
+layout: none
+---
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
+    <generator uri="https://jekyllrb.com/" version="{{ jekyll.version }}">Jekyll</generator>
+    <link href="{{ '/' | absolute_url }}" rel="alternate" type="text/html" hreflang="en" />
+    <updated>{{site.time | date_to_xmlschema }}</updated>
+    <id>{{ page.url | absolute_url | xml_escape }}</id>
+
+    <title type="html">Tom Hodson's Atom Feed</title>
+    <subtitle>{{ site.description | xml_escape }}</subtitle>
+
+    <icon>{{"/favicon.ico" | absolute_url | xml_escape }}</icon>
+    <logo>{{ "/apple-touch-icon.png" | absolute_url | xml_escape }}</logo>
+
+    <author>
+        <name>Tom Hodson</name>
+        <uri>{{ site.url | xml_escape }}</uri>
+    </author> 
+    {% assign feed_items = site.feed.post_limit | default: 10 %}
+    {% for post in site.posts limit:feed_items %}
+    {% if post.draft == false or jekyll.environment == "development" %}
+    {% unless post.exclude_from_rss %}
+    <entry xml:lang="en">
+        {% assign post_title = post.title | smartify | strip_html | normalize_whitespace | xml_escape %}
+        <title type="html">{{ post_title }}</title>
+        <link href="{{ post.url | absolute_url }}" rel="alternate" type="text/html" title="{{ post_title }}" />
+        <published>{{ post.date | date_to_xmlschema }}</published>
+        <updated>{{ post.last_modified_at | default: post.date | date_to_xmlschema }}</updated>
+        <id>{{ post.id | absolute_url | xml_escape }}</id>
+        <summary type="html"><![CDATA[{{ post.excerpt | strip_html | normalize_whitespace }}]]></summary>
+        <content type="html" xml:base="{{ post.url | absolute_url | xml_escape }}"><![CDATA[{{ post.content | strip }}]]></content>
+        {% if post.social_image %}
+        <media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="{{ post.social_image | absolute_url | xml_escape }}" />
+        <media:content medium="image" url="{{ post.social_image | absolute_url | xml_escape }}" xmlns:media="http://search.yahoo.com/mrss/" />
+        {% endif %}
+    </entry>
+    {% endunless %}
+    {% endif %}
+    {% endfor %}
+</feed>
\ No newline at end of file